unsigned long discid(cd * this_cd) {
unsigned int i=0, t, n = 0, trks=0, l=0;
for (i=0; i< this_cd->tracks; i++)
if(this_cd->track[T2I(i)].type==AUDIO) {
n += cddb_sum((this_cd->track[T2I(i)].start_lba+CD_MSF_OFFSET)/CD_FRAMES);
trks++; l=i;
}
t = (this_cd->track[T2I(l+1)].start_lba-
this_cd->track[T2I(0)].start_lba)/CD_FRAMES;
return (((n % 0xFF) << 24) | (t << 8) | trks);
}
static int cdfs_readdir(struct file *filp, void *dirent, filldir_t filldir) {
struct inode *inode = filp->f_dentry->d_inode;
int i;
cd * this_cd = cdfs_info(inode->i_sb);
PRINT("cdfs_readdir ino=%ld f_pos=%u\n", inode->i_ino, (int)filp->f_pos);
for(i=filp->f_pos; i<T2I(this_cd->tracks); i++) {
if (filldir(dirent, this_cd->track[i].name, strlen(this_cd->track[i].name), 0, i, DT_UNKNOWN) < 0)
return 0;
filp->f_pos++;
}
return 1;
}
static void cdfs_umount(struct super_block *sb) {
int t;
cd * this_cd = cdfs_info(sb);
PRINT("cdfs_umount\n");
for (t=0; t<=this_cd->tracks; t++)
if ((this_cd->track[T2I(t)].type == DATA) && this_cd->track[T2I(t)].iso_info)
kfree(this_cd->track[T2I(t)].iso_info);
// Free & invalidate cache
kfree(this_cd->cache);
this_cd->cache_sector = -CACHE_SIZE;
// Remove /proc entry
cdfs_proc_cd = NULL;
kfree(cdfs_info(sb));
#ifdef OLD_KERNEL
MOD_DEC_USE_COUNT;
#endif
}
int cdfs_read_proc(char *buf, char **start, off_t offset,
int len, int *eof, void *data ){
int t,i;
struct _track_info * track;
char proc_info[4096];
char * proc_counter = proc_info;
char MSFsize[10];
if (!cdfs_proc_cd) {
proc_counter+=sprintf(proc_counter, "[%s\t%s]\n\tNo CD mounted\n",
FSNAME, VERSION);
} else {
proc_counter+=sprintf(proc_counter,
"[%s\t%s]\n\nCD (discid=%08X) contains %d track%s:\n\n",
FSNAME, VERSION, cdfs_proc_cd->discid, cdfs_proc_cd->tracks,
cdfs_proc_cd->tracks-1 ? "s" : "");
/* add stuff here */
for (t=0; t<cdfs_proc_cd->tracks; t++) {
i=T2I(t);
proc_counter+=sprintf(proc_counter,"\n");
track = &cdfs_proc_cd->track[i];
if (track->type == DATA) {
if (track->iso_size) { /* DATA & ISO */
proc_counter+=sprintf(proc_counter,"Track %2d: data track (%s), [%d-%d/%d], length=%d MB\n",
t+1, track->name, track->start_lba, track->iso_size/2048,
track->stop_lba, track->track_size/1024/1024);
proc_counter+=sprintf(proc_counter,
"\ttype: %c info: %.5s version: %c\n"
"\tdate: %.2s/%.2s/%.4s time: %.2s:%.2s:%.2s\n"
"\tsystem: %.32s\n\tvolume: %.32s\n",
track->iso_info->type[0]+48,
track->iso_info->id,
track->iso_info->version[0]+48,
track->iso_info->creation_date+6,
track->iso_info->creation_date+4,
track->iso_info->creation_date,
track->iso_info->creation_date+8,
track->iso_info->creation_date+10,
track->iso_info->creation_date+12,
track->iso_info->system_id,
track->iso_info->volume_id
);
proc_counter+=sprintf(proc_counter, "\tpublisher: %.128s\n", track->iso_info->publisher_id);
proc_counter-=2; while (*--proc_counter==' ') ; proc_counter+=2; *proc_counter++='\n';
proc_counter+=sprintf(proc_counter, "\tpreparer: %.128s\n", track->iso_info->preparer_id);
proc_counter-=2; while (*--proc_counter==' ') ; proc_counter+=2; *proc_counter++='\n';
proc_counter+=sprintf(proc_counter, "\tapplication: %.128s\n", track->iso_info->application_id);
proc_counter-=2; while (*--proc_counter==' ') ; proc_counter+=2; *proc_counter++='\n';
proc_counter+=sprintf(proc_counter, "\tlength: %d MB / %d MB / %d MB / %d MB\n",
(track->iso_size-track->start_lba*CD_FRAMESIZE)/1024/1024,
track->track_size/1024/1024,
track->iso_size/1024/1024,
track->size/1024/1024);
} else { /* DATA, geen ISO */
proc_counter+=sprintf(proc_counter,"Track %2d: data track (%s), [%d-%d], length=%d kB\n",
t+1, track->name, track->start_lba, track->stop_lba, track->track_size/1024);
proc_counter+=sprintf(proc_counter, "\ttype: %s\n", cdfs_proc_cd->videocd_type);
proc_counter+=sprintf(proc_counter, "\ttitle: %s\n", cdfs_proc_cd->videocd_title);
proc_counter+=sprintf(proc_counter, "\tframesize: %d B\n", track->xa_data_size);
}
} else if (track->type==BOOT) {
proc_counter+=sprintf(proc_counter,"Bootimage (%s), [%d-%d], length=%d kB\n\tID string:%s\n",
track->name, track->start_lba, track->stop_lba, track->size/1024, track->bootID);
} else if (track->type==HFS) {
proc_counter+=sprintf(proc_counter,"Apple HFS (%s), [%d-%d], length=%d MB\n\tID string:%s\n",
track->name, track->start_lba, track->stop_lba, track->size/1024/1024, track->bootID);
} else if (track->type==AUDIO) {
cdfs_constructMSFsize(MSFsize, track->size);
proc_counter+=sprintf(proc_counter,"Track %2d: audio track (%s), [%8d -%8d], length=%s\n",
t+1, track->name, track->start_lba, track->stop_lba, MSFsize);
}
}
}
strncpy(buf, proc_info, proc_counter-proc_info);
return proc_counter-proc_info;
}
static struct dentry * cdfs_lookup(struct inode *dir, struct dentry *dentry){
#else
static struct dentry * cdfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd){
#endif
struct inode * inode;
int i;
cd * this_cd = cdfs_info(dir->i_sb);
PRINT("cdfs_lookup %s ino=%ld \n", dentry->d_name.name, dir->i_ino);
for(i=0; i<T2I(this_cd->tracks); i++)
if (!(strcmp(this_cd->track[i].name, dentry->d_name.name))) {
goto found;
}
return ERR_PTR(-ENOENT);
/* Use goto and read inode with iget()/cdfs_iget() */
/* Thanks to David Howells for patch and Master class in his mail */
found:
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,24)
inode = cdfs_iget(dir->i_sb, i);
if (IS_ERR(inode))
return ERR_CAST(inode);
#else
inode = iget(dir->i_sb, i);
if (!inode)
return ERR_PTR(-ENOMEM);
#endif
d_add(dentry, inode);
return NULL;
}
/***************************************************************************/
static struct file_operations cdfs_dir_operations = {
.read = generic_read_dir,
.readdir = cdfs_readdir,
};
static struct inode_operations cdfs_inode_operations = {
.lookup = cdfs_lookup
};
/**************************************************************************/
static void cdfs_read_inode(struct inode *i) {
cd * this_cd = cdfs_info(i->i_sb);
PRINT("this_cd = 0x%x\n", (unsigned)this_cd);
PRINT("read inode %ld\n", i->i_ino);
i->i_uid = this_cd->uid;
i->i_gid = this_cd->gid;
i->i_nlink = 1;
i->i_op = &cdfs_inode_operations;
i->i_fop = NULL;
i->i_data.a_ops = NULL;
if (i->i_ino <= 2) { /* . and .. */
i->i_size = 0; /* Uuugh ?? */
i->i_mtime = i->i_atime = i->i_ctime = CURRENT_TIME;
i->i_mode = S_IFDIR | S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
i->i_fop = &cdfs_dir_operations;
} else { /* file */
i->i_size = this_cd->track[i->i_ino].size;
#ifdef OLD_KERNEL
i->i_mtime = i->i_atime = i->i_ctime = this_cd->track[i->i_ino].time;
#else
i->i_mtime.tv_sec = i->i_atime.tv_sec = i->i_ctime.tv_sec = this_cd->track[i->i_ino].time;
i->i_mtime.tv_nsec = i->i_atime.tv_nsec = i->i_ctime.tv_nsec = 0;
#endif
i->i_mode = this_cd->mode;
if ((this_cd->track[i->i_ino].type==DATA) && this_cd->track[i->i_ino].iso_size) {
i->i_fop = &cdfs_cddata_file_operations;
i->i_data.a_ops = &cdfs_cddata_aops;
} else if (this_cd->track[i->i_ino].type==AUDIO) {
i->i_fop = &cdfs_cdda_file_operations;
if (this_cd->raw_audio)
i->i_data.a_ops = &cdfs_cdda_raw_aops;
else
i->i_data.a_ops = &cdfs_cdda_aops;
} else if (this_cd->track[i->i_ino].type==BOOT) {
i->i_fop = &cdfs_cddata_file_operations;
i->i_data.a_ops = &cdfs_cddata_aops;
} else if (this_cd->track[i->i_ino].type==HFS) {
if (this_cd->track[i->i_ino].hfs_offset) {
i->i_fop = &cdfs_cdhfs_file_operations; /* Bummer, this partition isn't properly aligned... */
i->i_data.a_ops = &cdfs_cdhfs_aops;
} else {
i->i_fop = &cdfs_cddata_file_operations;
i->i_data.a_ops = &cdfs_cddata_aops;
}
} else {
i->i_fop = &cdfs_cdXA_file_operations;
i->i_data.a_ops = &cdfs_cdXA_aops;
}
}
}
static struct super_block * cdfs_mount(struct super_block *sb, void *data, int silent){
kdev_t dev = sb->s_dev;
int i, j, t;
struct cdrom_tochdr hdr;
#else
static int cdfs_fill_super(struct super_block *sb, void *data, int silent){
int i, t;
#endif
struct cdrom_tocentry entry;
int no_audio=0, no_data=0;
cd * this_cd;
struct inode *retinode;
PRINT("cdfs_mount\n");
#ifdef OLD_KERNEL
MOD_INC_USE_COUNT;
set_blocksize(dev, CD_FRAMESIZE); // voor bread met ide-cd
#else
sb_set_blocksize(sb, CD_FRAMESIZE); // voor bread met ide-cd
#endif
sb->s_blocksize = CD_FRAMESIZE;
sb->s_blocksize_bits = 11;
if (!(this_cd = cdfs_info(sb) = kmalloc(sizeof(cd), GFP_KERNEL))){
#ifdef OLD_KERNEL
MOD_DEC_USE_COUNT;
return NULL;
#else
return -ENOMEM;
#endif
}
this_cd->mode = MODE;
this_cd->gid = GID;
this_cd->uid = UID;
this_cd->single = FALSE;
this_cd->raw_audio = 0;
this_cd->toc_scsi = FALSE;
// Initialize cache for maximum sector size
if (!(this_cd->cache = kmalloc(CD_FRAMESIZE_RAWER*CACHE_SIZE, GFP_KERNEL))) {
#ifdef OLD_KERNEL
MOD_DEC_USE_COUNT;
return NULL;
#else
kfree(cdfs_info(sb));
return -ENOMEM;
#endif
}
// Cache is still invalid
this_cd->cache_sector = -CACHE_SIZE;
cdfs_parse_options((char *) data, this_cd);
/* Populate CD info with '.' and '..' */
strcpy(this_cd->track[1].name, "."); this_cd->track[1].start_lba=0;
strcpy(this_cd->track[2].name, ".."); this_cd->track[2].start_lba=0;
this_cd->nr_iso_sessions = 0;
this_cd->size = 0;
if (this_cd->toc_scsi){
if (cdfs_toc_read_full(sb)){
printk("TOC read failed\n");
#ifdef OLD_KERNEL
MOD_DEC_USE_COUNT;
return NULL;
#else
goto invalid;
#endif
}
} else {
//if (cdfs_ioctl(sb, CDROMREADTOCHDR, (unsigned long)&hdr)){
if (cdfs_toc_read(sb)){
printk("cdfs_toc_read failed\n");
#ifdef OLD_KERNEL
MOD_DEC_USE_COUNT;
return NULL;
#else
goto invalid;
#endif
}
}
PRINT("CD contains %d tracks\n", this_cd->tracks);
/* Collect track info */
entry.cdte_format = CDROM_LBA;
for (t=this_cd->tracks; t>=0; t--) {
i = T2I(t);
// j = this_cd->tracks-i;
// entry.cdte_track = (t==this_cd->tracks) ? CDROM_LEADOUT : t+1;
// PRINT("Read track %d/%d/%d\n", entry.cdte_track, t, i);
// if (cdfs_ioctl(sb, CDROMREADTOCENTRY, (unsigned long)&entry)){
// printk("ioctl(CDROMREADTOCENTRY) failed\n");
// MOD_DEC_USE_COUNT;
// return NULL;
// }
// this_cd->track[i].start_lba = entry.cdte_addr.lba;
// this_cd->track[i].stop_lba = this_cd->track[i+1].start_lba - 1;
this_cd->track[i].track_size = this_cd->track[i+1].start_lba - this_cd->track[i].start_lba; /* in sectors! */
PRINT("Start[%d]: %d\n", i, this_cd->track[i].start_lba);
if (t!=this_cd->tracks) { /* all tracks but the LEADOUT */
if (this_cd->track[i].type==DATA) {
//int track=i;
no_data++;
this_cd->track[i].iso_info = cdfs_get_iso_info(sb, i);
if (this_cd->track[i].iso_info) {
this_cd->track[i].time = cdfs_constructtime((char*)&(this_cd->track[i].iso_info->creation_date));
this_cd->track[i].iso_size = cdfs_constructsize((char*)&(this_cd->track[i].iso_info->volume_space_size)) * CD_FRAMESIZE;
if (!this_cd->single) this_cd->track[i].iso_size += this_cd->track[i].start_lba * CD_FRAMESIZE;
this_cd->track[i].track_size *= CD_FRAMESIZE;
this_cd->track[i].size = this_cd->track[i+1].start_lba * CD_FRAMESIZE;
sprintf(this_cd->track[i].name, this_cd->single ? DATA_NAME_SINGLE : DATA_NAME_ISO, t+1);
this_cd->lba_iso_sessions[this_cd->nr_iso_sessions].start = this_cd->track[i].start_lba;
this_cd->lba_iso_sessions[this_cd->nr_iso_sessions].stop = this_cd->track[i].iso_size/CD_FRAMESIZE;
this_cd->nr_iso_sessions++;
cdfs_get_hfs_info(sb, i); // possibly also a HFS
} else { // DATA, but no ISO -> either HFS or VideoCD
if (cdfs_get_hfs_info(sb, i)==-1){
printk("CHECKING VIDEOCD!!\n");
cdfs_get_XA_info(sb, i);
this_cd->track[i].time = 0;
this_cd->track[i].iso_size = 0;
this_cd->track[i].track_size = (this_cd->track[i].track_size-1) * this_cd->track[i].xa_data_size;
this_cd->track[i].size = this_cd->track[i].track_size;
sprintf(this_cd->track[i].name, DATA_NAME_VCD, no_data);
} else { // HFS, no ISO, no VideoCD -> remove track
this_cd->track[i].iso_info = NULL;
this_cd->track[i].type = 0;
}
}
} else {
no_audio++;
this_cd->track[i].iso_info = NULL;
this_cd->track[i].type = AUDIO;
this_cd->track[i].time = get_seconds();
this_cd->track[i].iso_size = 0;
this_cd->track[i].track_size = this_cd->track[i].track_size * CD_FRAMESIZE_RAW + ((this_cd->raw_audio==0)?WAV_HEADER_SIZE:0);
this_cd->track[i].size = this_cd->track[i].track_size;
this_cd->track[i].avi = 0;
sprintf(this_cd->track[i].name, (this_cd->raw_audio)? RAW_AUDIO_NAME:AUDIO_NAME, t+1);
if (this_cd->raw_audio) {
/* read the first sector. */
struct cdrom_read_audio cdda;
int status,k,j,prevk=0;
char* buf;
buf=kmalloc(CD_FRAMESIZE_RAW*2,GFP_KERNEL);
if(buf==NULL) {
printk(FSNAME ": kmalloc failed in root.c !\n");
return(-ENOMEM);
}
for (j=0;j<10;j++) {
cdda.addr_format = CDROM_LBA;
cdda.nframes = 1;
cdda.buf = buf+CD_FRAMESIZE_RAW;
cdda.addr.lba = this_cd->track[i].start_lba+j;
status = cdfs_ioctl(sb,CDROMREADAUDIO,(unsigned long)&cdda);
if (status) {
printk("cdfs_ioctl(CDROMREADAUDIO,%d) ioctl failed: %d\n", cdda.addr.lba, status);
goto out;
}
/* search the first non-zero byte */
for (k=0;k<CD_FRAMESIZE_RAW;k++)
if (buf[k+CD_FRAMESIZE_RAW]) break;
if (k<=CD_FRAMESIZE_RAW-4) break;
prevk=k;
if (k<CD_FRAMESIZE_RAW)
for (k=0;k<CD_FRAMESIZE_RAW;k++)
buf[k]=buf[k+CD_FRAMESIZE_RAW];
}
if (j==10) goto out;
if ((j!=0)&&(prevk!=CD_FRAMESIZE_RAW)) {
k=prevk;
j--;
}
else k+=CD_FRAMESIZE_RAW;
this_cd->track[i].avi_offset = j*CD_FRAMESIZE_RAW+k-CD_FRAMESIZE_RAW;
if ((buf[k]=='R')&&(buf[k+1]=='I')&&
(buf[k+2]=='F')&&(buf[k+3]=='F')) {
this_cd->track[i].avi = 1;
this_cd->track[i].avi_swab = 0;
} else if ((buf[k]=='I')&&(buf[k+1]=='R')&&
(buf[k+2]=='F')&&(buf[k+3]=='F')) {
this_cd->track[i].avi = 1;
this_cd->track[i].avi_swab = 1;
}
if (this_cd->track[i].avi) {
if ((this_cd->track[i].avi_offset&1)!=0) {
printk("AVI offset is not even, error\n");
this_cd->track[i].avi=0;
} else {
this_cd->track[i].track_size -= this_cd->track[i].avi_offset;
sprintf(this_cd->track[i].name, AVI_AUDIO_NAME, t+1);
}
}
out:
kfree(buf);
}
}
// Calculate total CD size
this_cd->size += this_cd->track[i].track_size;
PRINT("Track %2d: (%dB)\n", t, this_cd->track[i].size);
} // else CDROM_LEADOUT
}
PRINT("CD ends at %d\n", this_cd->track[this_cd->tracks].start_lba);
/* take care to get disc id after the toc has been read. JP, 29-12-2001 */
this_cd->discid = discid(this_cd);
////////////////////////////////
/* Check if CD is bootable */
if (this_cd->track[T2I(0)].type==DATA) cdfs_check_bootable(sb);
/* Check for an HFS partition in the first data track */
/*if (no_data) {
i=T2I(0);
while (i<T2I(this_cd->tracks)) {
if (this_cd->track[i].type==DATA)
break;
i++;
}
cdfs_get_hfs_info(sb, i);
}
*/
PRINT("%d audio tracks and %d data tracks => %dbytes\n",
no_audio, no_data, this_cd->size);
sb->s_magic = CDFS_MAGIC;
sb->s_flags |= MS_RDONLY;
sb->s_op = &cdfs_ops;
/* always get inode status */
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,24)
retinode=cdfs_iget(sb, 0);
#else
retinode=iget(sb, 0);
#endif
if ( IS_ERR(retinode) )
return PTR_ERR(retinode);
PRINT("retinode = %ld\n", retinode->i_ino);
sb->s_root = d_alloc_root(retinode);
cdfs_proc_cd = this_cd;
#ifdef OLD_KERNEL
return sb;
#else
return 0;
invalid:
kfree(this_cd->cache);
kfree(cdfs_info(sb));
return -EINVAL;
#endif
}
static int serveCgi(UosFile* sock, char* url, char* buf)
{
char* ptr;
int i;
int j;
bool first;
Sensor* s = sensorData;
char addr[30];
if (!strcmp(url, "/front_data.cgi")) {
posMutexLock(sensorMutex);
ptr = buf;
for (i = 0; i < MAX_TEMP; i++) {
if (i == 0) {
strcpy(ptr, "[");
ptr = ptr + 1;
}
sensorAddressStr(addr, s);
nosSPrintf(ptr, "{\"sensor\":\"%s\"", addr);
ptr += strlen(ptr);
nosSPrintf(ptr, ",\"temp\":%d.%d", T2I(s->temp), T2D(s->temp));
ptr += strlen(ptr);
nosSPrintf(ptr, ",\"tempMin\":%d.%d", T2I(s->tempMin), T2D(s->tempMin));
ptr += strlen(ptr);
nosSPrintf(ptr, ",\"tempMax\":%d.%d", T2I(s->tempMax), T2D(s->tempMax));
ptr += strlen(ptr);
strcpy(ptr, ",\"tempHistory\":[");
ptr += strlen(ptr);
j = s->tempCount - 5;
if (j < 0)
j = 0;
first = true;
for (;j < s->tempCount; j++) {
if (!first) {
*ptr = ',';
++ptr;
}
first = false;
nosSPrintf(ptr, "%d.%d", T2I(s->temps[j]), T2D(s->temps[j]));
ptr += strlen(ptr);
}
strcpy(ptr, "]}");
ptr += strlen(ptr);
if (i == MAX_TEMP - 1 || s[1].serialNum[0] == 0) {
strcat(ptr, "]");
ptr += 1;
uosFileWrite(sock, buf, ptr - buf);
break;
}
else {
strcat(ptr, ",");
ptr += 1;
if (SOCK_BUF_SIZE - (ptr - buf) < 128) {
uosFileWrite(sock, buf, ptr - buf);
ptr = buf;
}
}
s++;
}
posMutexUnlock(sensorMutex);
}
else if (!strcmp(url, "/temp_trend_data.cgi")) {
posMutexLock(sensorMutex);
sensorAddressStr(addr, s);
ptr = buf;
for (i = 0; i < s->tempCount; i++) {
if (i == 0) {
strcpy(ptr, "[");
ptr = ptr + 1;
}
nosSPrintf(ptr, "{\"sensor\":\"%s\",\"timeStamp\":%d,\"temp\":%d.%d}", addr, i - s->tempCount + 1,
T2I(s->temps[i]), T2D(s->temps[i]));
ptr += strlen(ptr);
if (i == s->tempCount - 1) {
strcat(ptr, "]");
ptr += 1;
uosFileWrite(sock, buf, ptr - buf);
}
else {
strcat(ptr, ",");
ptr += 1;
if (SOCK_BUF_SIZE - (ptr - buf) < 128) {
uosFileWrite(sock, buf, ptr - buf);
ptr = buf;
}
}
}
posMutexUnlock(sensorMutex);
}
else
uosFileWrite(sock, "No-No", 5);
return 0;
}